/* libfake437 - a library for the rendering of code page 437 `graphics'
 * Copyright (C) 2008 Jack Kelly <endgame.dos@gmail.com>
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifdef HAVE_CONFIG_H
#  include "config.h"
#endif

#ifdef HAVE_STDLIB_H
#  include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#  include <string.h>
#endif
#include <SDL.h>
#include "fake437.h"
#include "defaults.h"

FAKE437 *f437_Create(SDL_Surface *surface, Uint16 width, Uint16 height){
  FAKE437 *fake437;
  if((surface->w < width * F437_CHAR_WIDTH) ||
     (surface->h < height * F437_CHAR_HEIGHT) ||
     ((fake437 = malloc(sizeof(FAKE437))) == NULL)) return NULL;
  if((fake437->cells = calloc(width * height,
			      sizeof(struct f437_cell))) == NULL) goto err1;
  if((fake437->dirty_cells = calloc(width * height, sizeof(Uint8))) == NULL)
    goto err2;
  memcpy(&(fake437->chars), &defaultChars, sizeof(f437_charDef));
  memcpy(&(fake437->colors), &defaultColors, sizeof(f437_colorDef));
  fake437->width = width;
  fake437->height = height;
  fake437->surface = surface;
  return fake437;

 err2:
  free(fake437->cells);
 err1:
  free(fake437);
  return NULL;
}
